________________________________________________________________________________________

Home / Lawn and Garden Tractors / John Deere Lawn Tractors / John Deere E140

John Deere E140 Troubleshooting

The John Deere E140 is a E100 series lawn tractor. This model was manufactured from 2018. The components of John Deere E140 powerline system: Briggs and Stratton 44N677 4-cycle vertical-shaft V-twin OHV air-cooled gasoline engine and belt-driven hydrostatic transmission with infinite forward and reverse gears.

A 44.2 cu.in (724 cc) engine has a max power of 22 hp (16.4 kW), full pressure lubrication, and air cleaner with multi-stage filter. Max. forward speed - 5.5 mph (8.8 km/h), maximum reverse speed - 3.2 mph (5.1 km/h). The John Deere E140 is equipped with 15x6.00-6 front tyres and 20x10.00-8 rear tyres.

The wheel base is 49" (1240 mm). The tractor is compatible with the following attachments: a 48" mid-mount 3-blade mower deck with a cutting height of 1.0-4.0" (25-102 mm), 44" front-mount 2-stage snowblower, and 46" front blade with mechanical lift.

Engine Troubleshooting
Engine difficult to start or won't start
Empty fuel tank - Fill it up
Wrong grade of gasoline - Change gasoline
Air trapped in fuel system - Bleed air
Disconnected or loose spark plug wire - Check spark plug wiring connection, repair or change
Damaged spark plug - Install new spark plug
Clogged fuel filter - Fuel filter needs changing
Faulty safety switch - Change damaged switch
Wrong carburetor adjustment - Adjusting carburetor correctly
Bad compression - Check and change damaged parts
Choke cable is damaged or not adjusted properly - Change cable or adjust correctly
Engine runs irregularly
Air intake grill is clogged - Clean and wash as required
Defective ignition system - Check ignition system and replace faulty parts
Throttle cable is faulty or stuck - Replace or clean the cable
Air filter element is clogged - Clean or change air filter
Clogged or damaged fuel pump - Inspect fuel pump and change as required
Engine stops after starting
Damaged spark plug - Change spark plug as required
Dirty or defective carburetor - Carburetor needs to be replaced or cleaned
Faulty ignition coil - Ignition coil should be replaced
Broken or loose valve springs - New valve springs need to be installed
Valves are stuck - Service the valves
Engine overheats
Lack of engine oil - Checking oil level and add if necessary
Engine is running overloaded - Load reducing is recommended
Air intake screen is plugged - Wash or clean as required
Too lean fuel mixture in carburetor - Make the correct settings
Ignition timing is improper - Ignition timing needs to be adjusted correctly
Wrong valve setting - Valves needs to be set correctly
Engine noises or knocks
Low octane gasoline - Use proper fuel
Engine is under excessive load - Reduce the load
Engine oil insufficient - Need to add engine oil
Improperly adjusted low idle speed - Adjustment required
Dirty or faulty fuel pump - Clean or install new fuel pump
Crankshaft or main bearings failure - Repair or replace defective parts
Valve clearance is incorrect - Adjust valve clearance
Damaged piston rings or cylinder bore - Replace faulty components
Engine power is insufficient
Clogged or improperly adjusted carburetor - Carburetor needs to be adjusted correctly or cleaned
Air filter element is plugged - Service or replace air filter
Fuel pump is defective or dirty - Test fuel pump and change if necessary
Ignition failure - Inspect ignition system and change faulty parts
Defective cylinder head gasket - Change cylinder head gasket
Stuck or burned valves - Service or replace valves
Worn or defective push rod - Install a new push rod
Faulty cylinder block parts - Defective parts need to be replaced
High fuel consumption
Throttle is not fully open - Change or adjust throttle cable
Incorrect adjustment of carburetor main jet - Adjust it correctly
Spark plug is loose or faulty - Re-tighten or change the spark plug
Valves are stuck, burned, or worn - Replace or clean valves
Piston, sleeve, or rings are damaged - Replace defective parts as required
Incorrect valve clearance - Adjust valve clearance according to specifications
High engine oil consumption
Damaged gaskets or seals - Worn parts need to be replaced
Valve stems and guides are worn - Replace defective valves
Piston rings are stuck or worn - Install new piston rings
Scuffed cylinder liner or piston - Inspect liner and piston, fit new parts as necessary
Breather pipe or hose is plugged - Change or service


Hydrostatic Transmission Troubleshooting
HST transmission makes noise
Worn or out of adjustment speed control linkage - Adjust or replace linkage
Transmission overload - Reduce transmission load
Dirty transmission fluid or insufficient fluid level - Top up to proper level or change transmission fluid
Defective or worn transmission parts - After disassembly and inspection, replace defective components
Shifting is hard
Shift linkage is damaged or loose - Replace or service the linkage
Hydrostatic pump is seized or faulty - Repair or change pump
Transmission shift control components are worn or unadjusted - Change or adjust correctly
Loss of power
Transmission fluid level is low - Need to add transmission fluid
Drive sheave is damaged or worn - Change sheave
Shifter linkage is faulty or not adjusted - Adjust properly or change linkage
Worn or unadjusted speed control linkage - Replace or adjust linkage
Transmission leakage
Worn transmission seals or gaskets - Change gaskets or seals
Leaking final drive shaft - Install new shaft seals
Transmission housing is cracked - Replace housing or transmission assembly

Mower Deck Troubleshooting
Excessive mower vibration
Mower deck drive sheave is clogged or worn - Clean or replace sheave
Drive belt is loose or defective - Belt needs to be adjusted or replaced
Mower blades are warped or not balanced - Replace or balance blades
Blade bolts are not tightened well - Tighten bolts as required
Discharge chute is constantly plugged
Ground speed is too fast - Select a lower speed
Grass is too long - Must be set to low cutting height
Engine is running at too low speed - Adjust choke to full opening
Cutting level is too low - Must be set to high cutting height
Mower deck drive belt installed incorrectly - Install drive belt as required
Streaking of uncut grass
Deck is plugged with grass - Clean mower deck as required
Blades are not sharp - Sharpen the blades
Worn or damaged blades - Install new blades
Fast mowing speed - Use a slower speed
Cutting level is too low - Use a higher cutting height
Grass bag is full - Clean grass bag
Blades scalp the grass
Lawn is uneven or bumpy - Roll or level the lawn
Cutting height is too low - Raise the cutting height
High ground speed - Need to slow down
Improper mower deck level - Deck should be adjusted correctly
Damaged or bent blades - Blades need to be replaced
Tire pressure is too low - Check and inflate the tires
Mower deck to cut unevenly
Tires are not properly inflated - Correct tire pressure
Mower deck is not leveled properly - Level the deck properly
Excessive blade dullness - Blades need to be sharpened
Blades are defective or worn - Blades need to be replaced
Deck clogged with grass clippings - Check cutting deck and clean as necessary
Damaged mower deck shell - Rebuild or change mower deck
Mower spindle is faulty or loose - Replace or repair the spindle

Electrical Troubleshooting
Battery does not charge
Electrical cable connections are loose or corroded - Clean or tighten wiring connections
Defective battery terminal clamps - Terminal clamps should be changed
Battery dead cell - Use a new battery
Starter cranks slowly
Battery capacity is low - Battery is drained, charge it
Battery does not hold charge - Battery needs to be serviced or replaced
Battery cables are disconnected or terminals are faulty - Connect cables properly or replace terminals
Starter motor won't turn
Battery is drained or defective - Recharge or replace battery
Disconnected or improperly connected wiring harness - Inspect battery wiring harness and connect as required
Battery voltage is low - Recharge the battery
Spark plug dirty or improperly gapped - Clean and gap or replace
Solenoid or starter motor failure - Starter/solenoid needs to be replaced

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

Lawn and Garden Tractors Technical Specs
JOHN DEERE 314 JOHN DEERE D130 JOHN DEERE E150 JOHN DEERE L118
KUBOTA G5200 KUBOTA GR2100 KUBOTA T1400 KUBOTA T1560
FORD 140 FORD GT95 FORD LGT14D FORD LGT165
CRAFTSMAN GT5000 CRAFTSMAN LT2500 CRAFTSMAN T2000 CRAFTSMAN YT3000
CUB CADET 782D CUB CADET 1811 CUB CADET 2186 CUB CADET LT1045
HUSQVARNA CTH151 HUSQVARNA TC138 HUSQVARNA TS142T HUSQVARNA GT2254